One marketer at Wispr Flow ran roughly 100 newsletter sponsorships a month, mostly alone, on an agent powered marketing OS he built for himself. The system broke the first time he tried to hand it to someone else. That break is the story of AI leverage right now. The gains are real, and they stay locked in the one head that built them. The builder is Matt Swulinski, and today he became Head of Growth at Viktor, an AI employee who lives in Slack and Microsoft Teams. Teach him a skill once and…